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From: Ivan Voras <ivoras@freebsd.org>
To: pgsql-performance@postgresql.org
Subject: Re: limiting performance impact of wal archiving.
Date: Tue, 10 Nov 2009 15:05:36 +0100
Message-ID: <hdbrv8$p35$1@ger.gmane.org> (raw)
In-Reply-To: <8a1bfe660911100355l34a557ffj8244079c1fb689b5@mail.gmail.com>
References: <8a1bfe660911100355l34a557ffj8244079c1fb689b5@mail.gmail.com>

Laurent Laborde wrote:
> Hi !
> We recently had a problem with wal archiving badly impacting the
> performance of our postgresql master.

Hmmm, do you want to say that copying 16 MB files over the network (and 
presumably you are not doing it absolutely continually - there are 
pauses between log shipping - or you wouldn't be able to use bandwidth 
limiting) in an age when desktop drives easily read 60 MB/s (and besides 
most of the file should be cached by the OS anyway) is a problem for 
you? Slow hardware?

(or I've misunderstood the problem...)




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